Double wheel physical and chemical detection system
A physical and chemical detection, wheel-type technology, applied in the field of physical and chemical detection, can solve the problems of inability to test, low efficiency, small throughput, etc., and achieve the effects of light weight, reduced production cost, and high throughput
Active Publication Date: 2022-01-14
北京倍肯恒业科技发展股份有限公司
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Problems solved by technology
[0003] At present, the realization method of the modular physical and chemical detection system is to use a solid-state physical and chemical detection module with multiple LEDs and multiple PDs. In this way, each channel can only correspond to LEDs of one or several wavelengths, and it is impossible to test LEDs of any wavelength. The throughput of this method is small and the efficiency is low
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Embodiment Construction
[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0031] Such as figure 1 with 2 As shown, a double-wheel type LED physical and chemical detection system of the present invention includes an LED turntable 7, a cuvette turntable, a photodiode PD, a motor and its accessories; the LED circuit board 6 is installed in the center of the LED turntable 7, and there are multiple The LEDs are installed on the same circumference of the LED circuit board 6, and the LED turntable 7 is driven by the worm gear Hall motor 14 to rotate in the vertical direction; there is a fixed photodiode PD in the center of the cuvette turntable; the cuvette turntable is driven by Hall DC The reduction motor 20 is driven to rotate in the horizontal direction. There are multiple slots on the cuvette turntable. The cuvettes are inserted and fixed in the slots. There is a light-transmitting hole along the center of the circle to the ci...
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The invention discloses a double-wheel type LED physical and chemical detection system, which includes an LED turntable, a cuvette turntable, a photodiode PD, a motor and its accessory devices; the LED turntable is driven by a worm gear Hall motor to rotate in a vertical direction; the colorimetric There is a fixed photodiode PD in the center of the turntable; the turntable of the cuvette is driven by the Hall DC gear motor to rotate in the horizontal direction; the LED illuminates the measured liquid in the cuvette, the photodiode receives the light signal, and the light signal is amplified A definite value is obtained after digitalization, and the absorbance is obtained by comparing the value of pure water and the measured liquid. The beneficial effects of the present invention are: the structure is simple, the volume is small, the weight is very light, the operation is convenient, and the installation and debugging are convenient; the use of the same photodiode to detect all the channels greatly reduces the difference between the channels; among the ten channels Each channel can detect any one of 24 wavelengths, which greatly improves the detection efficiency.
Description
technical field [0001] The invention relates to the field of physical and chemical detection, in particular to a double-wheel type physical and chemical detection system utilizing absorbance detection. Background technique [0002] Absorbance is a physical quantity used to measure the degree to which light is absorbed. It refers to the logarithm to the base 10 of the ratio of the incident light intensity before the light passes through the solution or a substance to the transmitted light intensity after the light passes through the solution or substance (ie lg(I0 / I1)), where I0 is the incident light Light intensity, I1 is the transmitted light intensity, the factors that affect it are solvent, concentration, temperature and so on. The main function of the modular physical and chemical detection system is to detect the absorbance. Its basic working principle is to irradiate the liquid under test with a fixed-wavelength LED, and then receive the light signal through the oppos...
Claims
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IPC IPC(8): G01N21/31G01N21/27G01N21/01
CPCG01N21/01G01N21/255G01N21/27G01N21/31
Inventor 姚世平刘光中丁绍伟张学治李少杰林宏斌
Owner 北京倍肯恒业科技发展股份有限公司